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authorAndre Przywara <andre.przywara@arm.com>2017-01-02 11:48:26 +0000
committerJagan Teki <jagan@openedev.com>2017-01-04 16:37:40 +0100
commitebda0cc5090d758b5f2a99b4ea116d27e4402255 (patch)
tree09fe94303f095455ab9f89524290899cbd12fe9e /arch/arm/lib/Makefile
parent2865433a465755d45a2bdd83762fb373d60b9f20 (diff)
armv8: prevent using THUMB
The predominantely 32-bit ARM targets try to compile the SPL in Thumb mode to reduce code size. The 64-bit AArch64 instruction set does not know an alternative, concise encoding, so the Thumb build option should only be set for 32-bit targets. Likewise -marm machine options are only valid for ARMv7 targets. Signed-off-by: Andre Przywara <andre.przywara@arm.com> Reviewed-by: Alexander Graf <agraf@suse.de> Reviewed-by: Simon Glass <sjg@chromium.org> Reviewed-by: Tom Rini <trini@konsulko.com> Acked-by: Maxime Ripard <maxime.ripard@free-electrons.com> Reviewed-by: Jagan Teki <jagan@openedev.com>
Diffstat (limited to 'arch/arm/lib/Makefile')
-rw-r--r--arch/arm/lib/Makefile2
1 files changed, 2 insertions, 0 deletions
diff --git a/arch/arm/lib/Makefile b/arch/arm/lib/Makefile
index 0051f76db0..024139da25 100644
--- a/arch/arm/lib/Makefile
+++ b/arch/arm/lib/Makefile
@@ -77,8 +77,10 @@ ifndef CONFIG_HAS_THUMB2
# for C files, just apend -marm, which will override previous -mthumb*
+ifndef CONFIG_ARM64
CFLAGS_cache.o := -marm
CFLAGS_cache-cp15.o := -marm
+endif
# For .S, drop -mthumb* and other thumb-related options.
# CFLAGS_REMOVE_* would not have an effet, so AFLAGS_REMOVE_*